Intel DX79SI Product Guide for Intel Desktop Board DX79SI - Page 75
Port 80h POST Codes, POST Code LED Display
View all Intel DX79SI manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 75 highlights
Error Messages and Indicators Port 80h POST Codes During the POST, the BIOS generates diagnostic progress codes (POST codes) to I/O port 80h. If the POST fails, execution stops and the last POST code generated is left at port 80h and displayed on the Desktop Board's seven-segment LED display shown in Figure 30. This code is useful for determining the point where an error occurred during the POST. Figure 30. POST Code LED Display 75
Error Messages and Indicators
75
Port 80h POST Codes
During the POST, the BIOS generates diagnostic progress codes (POST codes) to I/O
port 80h.
If the POST fails, execution stops and the last POST code generated is left
at port 80h and displayed on the Desktop Board’s seven-segment LED display shown
in Figure 30.
This code is useful for determining the point where an error occurred
during the POST.
Figure 30.
POST Code LED Display